Math, Math, Math
Money Problems
Round It Out
Estimation Station
Wordy Ones
100
Find the sum:
9.42 + 3.09
12.51
100
Jane spent $4.90 on a cupcake and $20.34 on balloons for a party. How much did she spend in all?
(Don't forget your unit)
$25.24
100
Round this number to the nearest hundredth.
58.988
58.99
100
Estimate the following:
2.56 + 9.3
About 10
100
Round the side lengths to the nearest whole number, and estimate the perimeter.
34 cm
200
Find the sum:
102.75 + 9.1
111.85
200
Ellis has many jobs over the summer. Last week he got paid $425.70 for mowing lawns, $120.50 for cleaning pools, and $50.98 for babysitting his brother. How much money did he make in all?
$597.18
200
Round this number to the nearest whole number.
73.78
74
200
Estimate the following:
98.40 + 48.2
About 150
200
Round the side lengths of this shape to the nearest whole number. What is the estimated area?
70 cm2
300
Find the difference:
342.89 - 120.12
222.77
300
Amber spent $12.25 on pizza and $4.60 on a drink. She paid with a $20.00. How much change did she get back?
$3.15
300
Round both numbers to the nearest tenth, and estimate the sum.
14.89 + 3.14
14.9 + 3.1 = 18
300
Estimate the following by rounding to the nearest whole number.
987.62 + 32.1
1,020
300
What is the perimeter of this shape?
33.8 cm
400
Am I looking for the sum or difference? What is it?
200.72 + 199.63
Sum, 400.35
400
At the grocery store, Grandma spends $15.30 on chicken, $5.50 on iced tea, and $7.80 on cookie dough. What are the two least expensive items, and what is the difference between their prices?
Cookie dough and iced tea. The difference between the two is $2.30.
400
I scored a 98.5 on my test, and my brother scored a 92.4. Estimate the difference in our scores by rounding to the nearest whole number.
99 - 92 = 7
The difference is about 7 points.
400
Estimate the following by rounding to the nearest tenth.
3.45 + 60.82 + 6.41
70.7
400
This box shows the dimensions of a large sticky note. Another sticky note is a square, with side lengths of 12.2 cm. Which sticky note has a greater perimeter?
Large: 33.8 cm
Square: 48.8 cm
The square sticky note has a greater perimeter.